The Neutron Series is Tsar Bomba’s limited edition line for collectors who demand exclusivity without compromise. Produced in restricted quantities with the same NH35A automatic movement, sapphire crystal glass, and 316L stainless steel construction that defines the Tsar Bomba standard, the Neutron Series simply does not stay in stock long.If you see a Neutron Series model available, it is because someone has not yet claimed it. These watches are produced to be owned, not just admired. Explore the Neutron Series now — add your chosen model to your cart before this production run closes.